Wrench



(No Model.)

CINUADE. WRENCH.

N0. 460,427 I Patented Sept. 29, 1891 22 fil /27 ATTORNEYS UNITED STATESPATENT OFFICE.

ALBERT CINCADE, OF JERSEY CITY, NElV JERSEY.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 460,427, datedSeptember 29, 1891.

Application filed April 3, 1891.

To all whom it may concern:

Be it known that I, ALBERT CINCADE, of J ersey City, in the county ofHudson and State of New Jersey, have invented a new and usefulImprovement in WVrenches, of which the following is a full, clear, andexact description.

The invention is an improvement in that particular class ofratchet-wrenches having pivoted spring-dogs for looking a pivoted heador block that carries adjustable jaws for holding a nut or other objectto be turned.

The improvement relates to the construction and combination of thepivoted block, the jaws, and means for adjusting the latter, ashereinafter described.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures and letters of referenceindicate corresponding parts in all the views.

Figure 1 is a side elevation of the wrench. Fig. 2 is an edge viewthereof, and Fig. 3 is a plan view of the wrench.

The handle is secured in any suitable or approved manner at one end ofthe shank or stock 11, the shank or stock being of metal and providedwith a vertical recess 12, extending from its upper edge nearly to itsattachment with the handle, as shown in Fig. 2, whereby the shank orstock is virtually bifurcated, being divided at its upper end into twomembers a and a, as the recess 12 extends through from side to side. Inthe upper end of the recess a semicircular or segmental block 13 ispivoted. The circular peripheral surface of the block is provided with aseries of teeth 14:, and the toothed surface of the block is adapted toenter the recess 12 in the shank. The upper edge 15 of the block isstraight and is provided with a longitudinal groove 16, extendingthrough the periphery. Upon each side of the block 13, near the straightedge 15 thereof, a rib 17 is produced, adapted to constitute a guide fora movable jaw 18, the said jaw being provided with arms 19, which extenddownward, one at each side of the block, beneath thelower edge of theribs 17, and the movable jaw is further provided with an attached bar20, preferably rectangular in cross-section, located centrally upon itsunder face, and said bar Serial No. 388,102. (No model.)

extends some distance beyond the inner face of the jaw at a right anglethereto. The bar 20 is of sufficient size to neatly lit and slide in thegroove 16 of the block 13, and is of a length suificient to projectbeyond one edge of the block when the jaw is located at the oppositeedge. The upper and lower surfaces of the bar 20 at its outer end arethreaded, as illustrated at b, and upon the threaded surface of the baran adjusting-nut 21 is located, which nut is provided with a peripheralcircular groove 22, and the block 13 is provided with a recess 23 toreceive a portion of the nut, as shown in Fig. 1, and a lug 24,extending in the groove of the nut, whereby the nut is held in oneposition with respect to the block 13, and a jaw 25, which is rigidly attached to or constitutes an integral portion of the upper orstraightface of the block at the end adjacent to the nut. The groove 16 in theblock extends through the fixed jaw 25. WVithin the recess 12 of theshank or stock two dogs 26 and 27 are pivoted, the said dogs beingopposite each other, and the upper ends of the dogs are normally made toengage with the periphery of the block 13 between sundry of its teeththrough the medium of tension exerted upon the lower ends of the dogs bymeans of a spring or springs 28. WVhen both dogs engage with the block,the wrench may be used in the capacity of a monkey or plain wrench, andthe wrench may be utilized either as a right or left hand ratchet-wrenchby causing only one of the dogs to engage with the block. The dogs areheld out of engagement with the block, when desired, through the mediumof disks 2.), pivoted one at each side of the shank upon the solidportion thereof at the lower end of the shank-recess 12. Each disk isprovided with a recess 30 in its periphery and with an attached knob orstud 31, whereby it is rotated. When the recessed surfaces of the disksare opposite the lower ends of the dogs, the upper ends of the dogs arefree to engage with the block 13; but when the lower ends of the dogsare pressed inward and the solid peripheral portions of the disks arecarried over the dogs the said dogs are held at their upper ends out ofengagement with the block, and the block may be rocked in the shank,

as required. It is evident that the block may be adjusted so as to bringthe jaws immediately over the end of the shank or to carry the jaws atany desired angle to the longitudinal axis of the shank, and that theblock may be fixedly held in any of these positions. It is also evidentthat by manipulating the nut 21 the sliding jaw may be carried to orfrom the fixed jaw, as occasion may demand. It will also be readilyunderstood that, as heretofore stated, either of the dogs may be quicklycarried into engagement with the block or disengaged therefrom toconvert the wrench into a right or left hand ratchetwrench, as thecharacter of the work and the place in which the wrench is to be usedmay demand.

Having thus described my invention, I claim as new and desire to secureby Letters Patent In a wrench of the class hereinbefore indicated, thecombination, with the pivoted block 13, having the fixed jaw 25, the lug24, and the groove 16 in its straight edge, of the movable jaw 18 andthe bar 20, formed solid with said jaw and threaded at its free end andfitted and sliding in said groove, and the nut 21, working on said barand having a circu 1nferential groove which receives the aforesaid lug,all as shown and described.

ALBERT CINCADE.

Witnesses:

D. W. LAWRENCE, WM. (J. WALLACE.

